Tubing and wire covering machine



(No Model.) 3 Sheets-Sheet 1.

V. BOYLE. TUBING AND WIRE COVERING MACHINE.

No. 592,938. Patented Nov. 2, 1897.

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3 Sheets- Sheet 2.

Patented Nov. 2, 1897.

(No Model.)

V. BOYLE. TUBING AND WIRE COVERING MACHINE. No. 592,938.

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V. BOYLE.

TUBING AND WIRE COVERING MACHINE.

N0. 592,938. Patented Nov. 2, 1897.

NITED STATES PATENT nron.

VERNON ROYLE, OF'PATERSON, NEW JERSEY.

TUBING AND W|RE-COVERING MACHINE.

SPECIFICATION forming part of Letters Patent No. 592,938, dated November 2, 1897.

Application filed April 30 1 8 9 5.

T0 on whom it may concern:

Be it known that I, VERNON RoYLE, of Paterson, in the county of Passaic and State of New Jersey, have invented a new and useful Improvement in Tubing and Wire Covering Machines, of which the following is a specification.

My invention relates to an improvement in tubing and wire covering machines, with the general object in view of increasing the efficiency of the machine in several important features. 7 T

A practical embodiment of my invention is represented in the accompanying drawings, in which Figure 1 is a view of the machine in side elevation, partly in section. Fig. 2 is a top plan view, partly in section, the feed-screw and its casing and the parts carried thereby being removed. Fig. 3 is a view in detail, in side elevation, of the mechanism for varying the rate of travel of the deliverybelt. Fig. 4 is an enlarged view, in longitudinal section, through the feed-screw, its casing,'and the parts carried thereby. Fig. 5- is an enlarged View in detail, in side elevation, of the bushing for circulating the heating medium around the mass fed by the feeding-screw; and Fig. 6 is an enlarged View, in end elevation, ofthe delivery-tube at the end of the feedscrew'.

The casing in which the. feed or pressure screw is mounted is denoted by A. It is stationary and conveniently supported on a hollow pedestal B. The form of pedestal. which I have chosen for this purpose is rectangular in cross-section.

Within the casing Athere is located a tubular bushing G, provided with annular ribs 0 c and a set of intermediate ribs, (denoted as a whole by 0 which alternately stop short of a complete ring, 'so as to form a continuous steam-conduit c from space to space between the successive ribs throughout the interval intermediate of the two annular ribs 0 c; The interior of the casing A is. provided throughout a suitable portion of its length (two-thirds of its length, for example) with an enlarged bore a for the reception of the ribbed portion of the bushing C, and throughout the remainder of its length the casing has a more contracted bore a for the reception of the end of "the bushing which extends becated through the cap-piece I to the Serial No. 547,617. (No model.)

yond the rib portion. When the bushing is inserted Within the casing A, the spaced ribs on it form, together with the interior wall of the casing, an inclosed continuous conduit for the circulationof steam or other heating fluid around and throughout the length of the bushing for the purpose of keeping the material to be forced along within the bushing at the proper temperature.

The heating fluid may be supplied by the pipe D, which communicates with a passageway d, leading to a port d through the casing to the passage 0 at one end of the bushing, the said heating fluid being discharged from the passage 0 through an'outlet-pipe D.

. The feed or pressure screw is denoted by E. It is here shown as provided with a double thread and fits with an easy rotary movement within the smooth circular bore of the bushing 0. It is provided at its rear end with a thrust-piece F, keyed to rotate with the screwas, for example, by a key f. Said piece F is provided with a series of exterior annular ribs f-in the present. instance sevenfor distributing the thrust pressure upon the screw when in operation throughout numerous abutments. The thrust-piece F, which is keyed to the screw E, fits with an easy rotary motion Within a thrust-bearing G, provided with interior annular ribs g, adapted to fit between and form bearings for the faces of the annular ribs fon the thrust-piece F. The thrust-bearing G is made in two half-sections, and when assembled is bolted to the end of the casing A by means of bolts g. On the thrust-bearing G there is loosely mounted a drive-wheel H, which by means of suitable lugs h on its side interlocks with a rotary cap I, provided with projections 2' on the interior of its rim, the cap-piece I having its hub z" keyed to the thrust-piece F, which in turn is keyed to the screw E, and hence the rotary movement of the drive-wheel H is communipressure or feed screw E.v

The opposite end of the pressure or feed screw E rests in proximity to the hub or hollow core is of a short tube K, screwed into the screw-threaded bore of the pressure-headL.

' terior of the tubular core P.

interior of the pressure-head L, and intermediate of the interior wall of the tube K and its hub or core 713 (see Fig. 6) there are located winding webs M, which form between them winding passages for the passage of the mass being pressed forward by the screw, the direction of the said winding passages being such as to advance the material in substantially the same winding path in which it was forced forward by the threads of the pressure or feed screw E.

Intermediate of the ends of the screw E and the hub or core 7; there is located an annular bearing-ring or packing 76 which is preferably partially entered in a recess 6 at the end of the screw.

The pressure-head L is bolted to the end of the casing by suitable bolts Z, (see Fig. 1,) the end of the casing A having a short extended reduced portion a for the reception of the end of the pressure-head adjacent to the casing. \Vithin the bore of the pressurehead L, adjacent to the short tube K, there'is located a short tube M, provided with a tapered bore m. Adjacent to the tube M,within the bore of the pressure-head L, there is located a die-support N, having its bore screwthreaded for the reception of the die n, and exterior to the die-support N, within the bore of the pressure-head L, there is located a clamping-nut O, which has a screw-threaded engagement with the interior of the pressureliead L and serves to hold the several parts snugly in position againstdisplacement in the longitudinal direction of the bore. The

tube K is held against rotary displacement by ajam-screw k, and the die-support N is held in lateral adjustment by jam-screws a n seated in the head L and engaged with its periphery. The pressure-head L is provided with conduits l for the reception of the heating fluid, a port (1 in the casing A being adapted to lead the heating fluid into the pressure-head from the inlet-pipe D, and the said conduits Z having an outlet at Z into the outlet-pipe D.

The screw E is made tubular, and the thrustpiece F is also made tubular, and there is located continuously through the thrust-piece F and screw E a tubular core P, supported at its outer end in a bracket 1) and at its inner end within the hub or core of the short tube K. The exterior of the tubular core Pis provided with a screw-thread p and is spaced a short distance from the interior of the tubular screw, so as to leave a passage-way between the exterior of the tubular core P and the interior of the screw E and thrust-piece F to open space between the arms of the bracket 19.

In the form in which I have represented the machine it is arranged for insulating wire which may be fed through the tubular core P, and there is therefore shown a tubular nozzle p adjusted in the hub of the tube K, its bore forming acontinuation of the in- If the-machine suitable source.

were to be employed for making a tube, the hollow nozzle 17 might be removed and a solid core-die inserted in its place-such, for example, as that shown in Letters Patent granted to Boyle and Royle, J12, August 11, 1891, No. 457,482.

The material is fed to the screwE through an opening a in the casing. (See Fig. 1.) The several abutments throughout the thrustbearing G, as well as the bearing of the drivewheel, are kept lubricated by means of channels gileadin g along the bearing of the drivewheel, and branch channels g leading to the several abutments within the thrust-bearing from the oil-cup g.

Motion is imparted to the drivewheel II by a pinion g on a drive-shaft Q, provided with a drive-pulley q for receiving power from a (Not shown.) In the present instance I have shown the outer end of the drive-shaft Q as mounted in a bearing in the top of the standard B. My present invention contemplates the location of a drivepulley similar to q on a drive-shaft Q, geared with the shaft Q, by bevel-gears g (f, the position of the shaft Q and the bevel-gears g (1 being indicated in dotted lines in Fig. 2.

The shaft Q has its bearing within a sleeve I), fixed to the side of the pedestal B and extending at right angles to the bearing 1), in which the shaft Q, is mounted.

The sleeve bserves another purpose in my present arrangement, as will hereinafter appear, and the provision for locating the driving-pulley on a shaft occupying the position of the shaft Q becomes an important one when considering the question of where the machine can best be located with respect to the source of power, as it admits of receiving power from either of two directions at right angles to each other while fronting the machine in the same direction.

The delivery-belt R, mounted on a drum 1", driven by a pulley '7", connected by a crossbelt r with a pulley 7' fixed to rotate with a pulley 0' mounted on the sleeve Z) and connected by a belt 7 with a pulley r, mounted to rotate with a friction-wheel 0' on a shaft 0' and a friction-pinion S, keyed to the shaft 3 to rotate therewith, while at the same time free to move longitudinally thereon by means of a sleeve .9, connected by a link 5 with an arm 5 of an angle-lever pivoted at s and having its opposite arm .9 connected by a rod 5 with the short arm 5 of an operating-lever 5 adapted to be adjusted within the slotted sector 8, together with the pulleys T on the shaft 3, for receiving motion by a belt 5 from the drive-pulley T on the shaft Q, are quite similar in their construction and arrangement to that shown, described, and claimed in the patent to Boyle and Royle, J r., No. 825,363, granted September 1, 1885, with the exception of the location of the bearing Z) for the wheel 7' and drive-pulley r in such relation to the shaft Q as to admit of applying the driving power to the machine by a shaft occupying the position of Q instead of by means of the shaft Q.

As the pressure or feed screw is rotated to force the mass toward the die any material which has crept through the joint between the end of the screw and the bearing-washer k will be worked along the space between the interior of the screw and the exterior of the screw-thread on the tubular coreP and finally discharged through the skeleton bracket p.

What I claim is- 1. The combination with the casing,the hol-' low pressure-screw therein and means for operating the screw, of a core extending along the interior of the screw and provided with an exterior screw-thread to work out any material that may get between the screw and core, substantially as set forth.

2. The combination with the casing, the hollow pressure-screw and means for operating the screw, of a tubular core extending along the interior of the screw and provided with an exterior screw-thread spaced from the interior of the screw, substantially as set forth.

3. The combination with the casing, the pressure-head, the hollow pressure-screw and means for operating the screw, of a tubular core extending along the interior of the screw and a tube at one end of the screw within the pressure-head having a core or hub, the end of said tubular core being fixed within the core or hub of said tube, substantially as set forth.

4. The combination with the casing, the pressure-screw and means for operating the screw, of the die and a tube interposed between the end of the screw and the die and provided with winding passages forming continuations of the passage-ways between the pressure-screw and interior of the casing,substantially asset forth.

5. The combination with the casing, the pressure-head,the die and the pressure-screw, of a tube K interposed between the end of the pressure-screw and die and means for adj usting the said tube toward and away from the screw, substantially as set forth.

6. The combination with the casing, the

pressure-screw and means for operating the screw, of a bushing interposed between the screw and the interior of the casing and provided with spaced ribs on its exterior forming together with the casing passages for the heating fluid around the screw, substantially as set forth. 1

7. The combination with the casing, the pressure -head, the die and the pressurescrew, of a tube interposed between the end of the pressure-screw and die, the interior of the pressure-head and the exterior of the said tube being provided with screw-threads for adjusting the said tube toward and away from the screw, substantially as set forth.

8. The combination with the casing, the

pressure-head and the pressurescrew, of a tubelocated at the end of the pressure-screw for receiving the material from the screw and a ring or packing interposed between the said tube and the end of the screw, substantially as set forth.

9. The combination with the casing and the pressure-screw, of a thrust-piece connected with the screw and provided with a series of annular spaced ribs on its exterior, a fixed thrust-bearing provided on its interior with a series of annular ribs corresponding to the grooves on the thrust-piece, and means for applying power to the screw, substantially as set forth.

10. In combination, a casing, a pressurescrew within the casing, a thrust-piece attached to the screw and provided with a series of annular ribs, a two-part thrust-bearing provided with a series of annular ribs corresponding to the grooves on the thrustpiece, a drive-wheel mounted on the thrustbearing and a cap-piece adapted to lock the drive-wheel to the screw, substantially as set forth.

11. In combination, the pedestal, driveshaft bearings fixed thereto at an angle to one another, a drive-shaft mounted in one of the bearings, a pressure-screw, a delivery belt or apron, and means for transmitting power from the drive-shaft to the screw and belt or apron, substantially as set forth.

12. In a machine of the class described, a head portion provided with adie in which there are combined a central pin for forming the bore of a tube and an outer encircling wall for regulating the diameter of the tube, and means for adjusting the parts with relation to each other, substantially as described.

13. In a machine of the class described, a head portion carrying a die in which there are combined a spider having threaded engagement with the head portion, a central pin on such spider, a die proper screwthreaded in the head portion and encircling the pin, and means for changing the relation of the pin to the die proper, substantially as described.

. 14.. In combination, the pedestal, driveshaft bearings fixed thereto at an angle to vERNoN ROYLEN Witnesses:

FREDK. HAYNES, IRENE B. DECKER. 

